Samsung Gear S2 vs. Fitbit Ionic vs. Garmin Forerunner 935 vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Gear S2
Ionic
Forerunner 935
Grayson
Grayson
T-Rex
 SamsungGear S2Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$299$500$350$350$140
Release201520172017201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days4+ daysUp to 2 weeks24 hours24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360348x250240 x 240453 x 454453x454360 x 360
Size1.2 inches1.421.2 inches1.39 inches1.39 inches1.3 inches
Touch
TypeSuper AMOLEDOLEDLCDAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP6850m5 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenFitbit OSAndroid WearAndroid WearBuild-in
Apps
Music

All Wearables